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BOOK: ASP.NET 2.0 Website Programming Problem Design Solution ISBN: 978-0-7645-8464-0
This is the forum to discuss the Wrox book ASP.NET 2.0 Website Programming: Problem - Design - Solution by Marco Bellinaso; ISBN: 9780764584640
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Old May 19th, 2008, 04:20 AM
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Default Help with code from book

Please help my find error in code.

Create file in App_Code: Helpers.cs

Code:
using System.Web;
using System.IO;
using System.Web.Caching;

namespace MB.TheBeerHouse
{
    public static class Helpers
    {
        public static string[] GetThemes()
        {
            if (HttpContext.Current.Cache["SiteThemes"] != null)
            {
                return (string[])HttpContext.Current.Cache["SiteThemes"];
            }
            else
            {
                string themesDirPath = HttpContext.Current.Server.MapPath("~/App_Themes");
                string[] themes = Directory.GetDirectories(themesDirPath);
                for (int i = 0; i <= themes.Length - 1; i++)
                    themes[i] = Path.GetFileName(themes[i]);
                CacheDependency dep = new CacheDependency(themesDirPath);
                HttpContext.Current.Cache.Insert("SiteThemes", themes, dep);
                return themes;
            }
        }
    }
}
try use GetTheme() method in ThemeSelector.ascx.cs
Code:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using MB.TheBeerHouse;

public partial class ThemeSelector : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        ddlThemes.DataSource = Helpers.GetTheme();
    }
}
but get error.

Please help my fixed this error.


  #2 (permalink)  
Old May 19th, 2008, 05:04 AM
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Join Date: Mar 2007
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Default

boro - it's all in a name :D. in your definition, you have:

ddlThemes.DataSource = Helpers.GetTheme();

try using:

ddlThemes.DataSource = Helpers.GetThemes();

as this is how you've defined the method in the helpers.cs class. hope this works.


jimi

http://www.originaltalent.com
  #3 (permalink)  
Old March 12th, 2009, 11:28 PM
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Default App_code namespace error

This solution may come a little too late for “boro” but some other people may find it useful. In VS 2005, App_Code is a directory with funny characteristics. I found the solution in https://forums.asp.net/ (suggested by bpeterson) and I searched for “App_code namespace error”. Of course, one must spell all the names correctly (uppercase/ lowercase in C#) and the rest. Moreover, in VS 2005, when you create a class file in App_Code directory, by default, its “Build Action” property is marked as “Content”. You must click on the filename (in this case Helpers.cs) then in the properties window (usually located below the solution explorer window), find “Build Action” property which itself is grouped under “Advanced”. Next set the “Build Action” property to “Compile”. In my case, I had to copy the file to another file. Delete the offending file. Recreated it in App_Code directory. Then set its “Build Action” property to “compile”. I hope this is helpful.

Mike1298
 


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